/* Copyright (C) 2004 - 2008  Versant Inc.  http://www.db4o.com

This file is part of the sharpen open source java to c# translator.

sharpen is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation and as clarified by db4objects' GPL 
interpretation policy, available at
http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
Suite 350, San Mateo, CA 94403, USA.

sharpen is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. */

package sharpen.core.io;

import java.io.*;
import java.util.ArrayList;

public class IO {

    public static void writeFile(File file, String contents) throws IOException {
        FileWriter writer = new FileWriter(file);
        try {
            writer.append(contents);
        } finally {
            writer.close();
        }
    }

    public static String readFile(File file) throws IOException {
        FileReader reader = new FileReader(file);
        try {
            StringWriter writer = new StringWriter();
            char[] buffer = new char[32 * 1024];
            int read = 0;
            while ((read = reader.read(buffer)) > 0) {
                writer.write(buffer, 0, read);
            }
            return writer.toString();
        } finally {
            reader.close();
        }
    }

    public static void collectLines(ArrayList<String> lines, BufferedReader reader) throws IOException {
        String line = null;
        while (null != (line = reader.readLine())) {
            line = line.trim();
            if (line.length() > 0 && !line.startsWith("#")) {
                for (String arg : line.split("\\s+")) {
                    lines.add(arg);
                }
            }
        }
    }

    public static String[] linesFromFile(String fname) {
        try {
            java.io.FileReader reader = new java.io.FileReader(fname);
            try {
                ArrayList<String> lines = new ArrayList<String>();
                collectLines(lines, new BufferedReader(reader));
                return lines.toArray(new String[lines.size()]);
            } finally {
                reader.close();
            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

}
